|
施耐德 PLC 底板 140XBP01000
軟啟動器采用三相反并聯(lián)晶閘管作為調(diào)壓器，用這種電路如三相全控橋式整流電路，使用軟啟動器啟動電動機(jī)時，晶閘管的輸出電壓逐漸增加，電動機(jī)逐漸加速，直到晶閘管全導(dǎo)通，電動機(jī)工作在額定電壓的機(jī)械特性上，實(shí)現(xiàn)平滑啟動，降低啟動電流，避免啟動過流跳閘，將其接入電源和電動機(jī)定子之間。
概念編輯
電壓由零慢慢提升到額定電壓，這樣電機(jī)在啟動過程中的啟動電流，就由過去過載沖擊電流不可控制變成為可控制。并且可根據(jù)需要調(diào)節(jié)啟動電流的大小。電機(jī)啟動的全過程都不存在沖擊轉(zhuǎn)矩，而是平滑的啟動運(yùn)行。這就是軟啟動。 [1]
簡介編輯
a新穎電機(jī)控制裝置，國外稱為Soft Starter。它的主要構(gòu)成是串接于電源與被控電機(jī)之間的三相反并聯(lián)晶閘管及其電子控制電路。運(yùn)用不同的方法，控制三相反并聯(lián)晶閘管的導(dǎo)通角，使被控電機(jī)的輸入
電壓按不同的要求而變化，就可實(shí)現(xiàn)不同的功能。軟起動器和變頻器是兩種完全不同用途的產(chǎn)品。變頻器是用于需要調(diào)速的地方，其輸出不但改變電壓而且同時改變頻率；軟起動器實(shí)際上是個調(diào)壓器，用于電機(jī)起動時，輸出只改變電壓并沒有改變頻率。變頻器具備所有軟起動器功能，但它的價格比軟起動器貴得多，結(jié)構(gòu)也復(fù)雜得多。電動機(jī)軟起動器是運(yùn)用串接于電源與被控電機(jī)之間的軟啟動器，控制其內(nèi)部晶閘管的導(dǎo)通角，使電機(jī)輸入電壓從零以預(yù)設(shè)函數(shù)關(guān)系逐漸上升，直至啟動結(jié)束，賦予電機(jī)全電壓，即為軟啟動，在軟起動過程中，電機(jī)起動轉(zhuǎn)矩逐漸增加，轉(zhuǎn)速也逐漸增加。
TRUTZSCHLER ZPB 2 ZPB2 CIRCUIT BOARD 9 400-20.810.110 AE A-03-21-1 NEW
Trutzschler ZPB 2 400-20.810.110AE
Trutzschler ZPB 2 400-20.810.110AE
Trutzschler SIB 3 (A1) Board ——#9
Trutzschler SIB 3 (A1) Board ——#9
TRUTZSCHLER SBG-1 SBG1 CIRCUIT BOARD CARD 9 493-37.230.000 AA 49337230000 AA
TRUTZSCHLER SBG-1 SBG1 CIRCUIT BOARD CARD 9 493-37.230.000 AA 49337230000 AA
Trutzschler RIB 1 490-18.330.000 Lifetime Warranty !!!
Trutzschler RIB 1 490-18.330.000 Lifetime Warranty !!!
TRUTZSCHLER PR-1 CIRCUIT BOARD CARD PLC 491-89.230.000 49189230000
TRUTZSCHLER PR-1 CIRCUIT BOARD CARD PLC 491-89.230.000 49189230000
Trutzschler power supply VNB 1 9 494-66.430.000 AB VNB1 949466430000 NEW 8 A 24V
Trutzschler power supply VNB 1 9 494-66.430.000 AB VNB1 949466430000 NEW 8 A 24V
Trutzschler Power Supply NTE 1 9 492-47.430.000 AF New
Trutzschler Power Supply NTE 1 9 492-47.430.000 AF New
Trutzschler PLC Control Station BRE 1C 493-55.332.000 Used
Trutzschler PLC Control Station BRE 1C 493-55.332.000 Used
TRUTZSCHLER KOM 1.2 1 CIRCUIT BOARD 492-40.230.002 492-40.431.000 492-40.230.001
TRUTZSCHLER KOM 1.2 1 CIRCUIT BOARD 492-40.230.002 492-40.431.000 492-40.230.001
Trutzschler DCB1 DCB 1 9 494-80.230.000 ABR28 494-16.210.001 AA
Trutzschler DCB1 DCB 1 9 494-80.230.000 ABR28 494-16.210.001 AA
TRUTZSCHLER CONTROL STATION BRE 1C, 9 493-55.332.000 AD
TRUTZSCHLER CONTROL STATION BRE 1C, 9 493-55.332.000 AD
TRUTZSCHLER CIRCUIT BOARD CARD RAK 1 9 492-58.430.000
TRUTZSCHLER CIRCUIT BOARD CARD RAK 1 9 492-58.430.000
TRUTZSCHLER CIRCUIT BOARD CARD PLC MODULE CCM-UE1 CCMUE1 9 491-91.230.000
TRUTZSCHLER CIRCUIT BOARD CARD PLC MODULE CCM-UE1 CCMUE1 9 491-91.230.000
TRUTZSCHLER CIRCUIT BOARD CARD PLC MODULE CCM-UE1 CCMUE1 491-91.230.000
TRUTZSCHLER CIRCUIT BOARD CARD PLC MODULE CCM-UE1 CCMUE1 491-91.230.000
TRUTZSCHLER CCM-NP1 CIRCUIT BOARD CARD PLC 491-88.230.000 49188230000
TRUTZSCHLER CCM-NP1 CIRCUIT BOARD CARD PLC 491-88.230.000 49188230000
TRUTZSCHLER BRE 1C_BRE1C CONTROL STATION_Z-NR: 9 493-55.332.00 AD
TRUTZSCHLER BRE 1C_BRE1C CONTROL STATION_Z-NR: 9 493-55.332.00 AD
TRUTZSCHLER BRE 1C CONTROL STATION 9097-90.900.906 AA
TRUTZSCHLER BRE 1C CONTROL STATION 9097-90.900.906 AA
TRUTZSCHLER BRE 1C CONTROL STATION ***XLNT***
TRUTZSCHLER BRE 1C CONTROL STATION ***XLNT***
TRUTZSCHLER BRE 1C CONTROL STATION
TRUTZSCHLER BRE 1C CONTROL STATION
TRUTZSCHLER BOARD GMB-1A-9-494-58.230.000
TRUTZSCHLER BOARD GMB-1A-9-494-58.230.000
TRUTZSCHLER BIS 1C RELAY 490-93.334.000 49093334000
TRUTZSCHLER BIS 1C RELAY 490-93.334.000 49093334000
TRUTZSCHLER BIS 1 TYPE A RELAY 490-93.330.000 49093330000
TRUTZSCHLER BIS 1 TYPE A RELAY 490-93.330.000 49093330000
Trutzschler 492 47 430 000 NTE1 Supply
Trutzschler 492 47 430 000 NTE1 Supply
|
在線咨詢 
